/* ===== 轨道检测数据分析平台 样式 ===== */
:root {
  --bg: #0a101f;
  --bg-2: #0d1526;
  --card: #101a2e;
  --card-2: #15213a;
  --border: #233349;
  --border-2: #2e4260;
  --text: #e8eefb;
  --text-2: #9fb0cc;
  --text-3: #64748f;
  --accent: #38bdf8;
  --accent-2: #818cf8;
  --primary: #3b82f6;
  --success: #34d399;
  --warn: #fbbf24;
  --danger: #f87171;
  --purple: #a78bfa;
  --grad: linear-gradient(135deg, #38bdf8 0%, #818cf8 100%);
  --radius: 12px;
  --shadow: 0 8px 28px rgba(0, 0, 0, 0.35);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html, body { height: 100%; }
body { background: var(--bg); color: var(--text); font-size: 14px; line-height: 1.6; }
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-thumb { background: #2a3b57; border-radius: 4px; }
::-webkit-scrollbar-track { background: transparent; }
a { color: var(--accent); text-decoration: none; }
button { font-family: inherit; }
input, select, textarea { font-family: inherit; }
.hidden { display: none !important; }

/* ===== 登录页 ===== */
.login-wrap {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  background:
    radial-gradient(1000px 500px at 80% -10%, rgba(56, 189, 248, 0.14), transparent 60%),
    radial-gradient(900px 500px at 10% 110%, rgba(129, 140, 248, 0.14), transparent 60%),
    var(--bg);
  padding: 20px;
}
.login-card {
  width: 100%; max-width: 400px; background: var(--card); border: 1px solid var(--border);
  border-radius: 16px; padding: 36px 32px; box-shadow: var(--shadow);
  animation: rise 0.4s ease;
}
@keyframes rise { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }
.login-brand { display: flex; align-items: center; gap: 12px; margin-bottom: 6px; }
.login-brand .logo { width: 44px; height: 44px; border-radius: 12px; background: var(--grad); display: flex; align-items: center; justify-content: center; font-size: 22px; color: #fff; box-shadow: 0 6px 18px rgba(56, 189, 248, 0.35); }
.login-brand b { font-size: 18px; }
.login-brand span { display: block; font-size: 12px; color: var(--text-3); font-weight: 400; }
.login-sub { color: var(--text-2); font-size: 13px; margin: 4px 0 22px; }
.field { margin-bottom: 14px; }
.field label { display: block; font-size: 13px; color: var(--text-2); margin-bottom: 6px; font-weight: 500; }
.input {
  width: 100%; padding: 10px 13px; border-radius: 8px; border: 1px solid var(--border);
  background: var(--bg-2); color: var(--text); font-size: 14px; transition: border-color 0.15s, box-shadow 0.15s;
}
.input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.15); }
.input::placeholder { color: var(--text-3); }
.login-error { color: var(--danger); font-size: 13px; margin-bottom: 10px; min-height: 18px; }

/* ===== 按钮 ===== */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 9px 18px; border-radius: 8px; border: 1px solid var(--border-2);
  background: var(--card-2); color: var(--text); font-size: 14px; font-weight: 500;
  cursor: pointer; transition: all 0.15s; white-space: nowrap; user-select: none;
}
.btn:hover { border-color: var(--accent); color: var(--accent); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-primary { background: var(--grad); color: #fff; border: none; }
.btn-primary:hover { filter: brightness(1.1); color: #fff; }
.btn-danger { border-color: rgba(248, 113, 113, 0.4); color: var(--danger); }
.btn-danger:hover { background: rgba(248, 113, 113, 0.12); border-color: var(--danger); }
.btn-sm { padding: 5px 11px; font-size: 13px; border-radius: 6px; }
.btn-ghost { background: transparent; }
.btn-block { width: 100%; }
.btn-loading::after {
  content: ''; width: 12px; height: 12px; border: 2px solid rgba(255,255,255,0.4);
  border-top-color: #fff; border-radius: 50%; animation: spin 0.6s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ===== 布局 ===== */
.layout { display: flex; min-height: 100vh; }
.sidebar {
  width: 230px; background: var(--bg-2); border-right: 1px solid var(--border);
  display: flex; flex-direction: column; position: fixed; top: 0; bottom: 0; left: 0; z-index: 40;
  transition: transform 0.25s ease;
}
.brand { display: flex; align-items: center; gap: 10px; padding: 18px 18px 14px; border-bottom: 1px solid var(--border); }
.brand-icon { width: 38px; height: 38px; border-radius: 10px; background: var(--grad); display: flex; align-items: center; justify-content: center; font-size: 20px; }
.brand-text b { display: block; font-size: 15px; }
.brand-text span { font-size: 11px; color: var(--text-3); }
.nav { flex: 1; padding: 12px 10px; overflow-y: auto; }
.nav a {
  display: flex; align-items: center; gap: 10px; padding: 10px 12px; margin-bottom: 4px;
  border-radius: 8px; color: var(--text-2); font-size: 14px; font-weight: 500;
  transition: all 0.15s; border: 1px solid transparent;
}
.nav a:hover { background: var(--card-2); color: var(--text); }
.nav a.active { background: linear-gradient(135deg, rgba(56,189,248,0.16), rgba(129,140,248,0.16)); color: var(--accent); border-color: rgba(56,189,248,0.25); }
.nav-ic { width: 20px; text-align: center; font-size: 15px; }
.sidebar-foot { padding: 14px 12px; border-top: 1px solid var(--border); }
.user-chip { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
.avatar { width: 34px; height: 34px; border-radius: 50%; background: var(--grad); display: flex; align-items: center; justify-content: center; font-weight: 700; color: #fff; font-size: 14px; }
.user-chip b { display: block; font-size: 13px; }
.user-chip span { font-size: 11px; color: var(--text-3); }

.main { flex: 1; margin-left: 230px; min-width: 0; display: flex; flex-direction: column; }
.topbar {
  display: flex; align-items: center; gap: 14px; padding: 14px 24px;
  background: rgba(10, 16, 31, 0.85); backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 30;
}
.topbar h1 { font-size: 17px; font-weight: 600; }
.topbar-right { margin-left: auto; display: flex; align-items: center; gap: 10px; }
.date-chip { font-size: 12px; color: var(--text-3); background: var(--card); padding: 5px 11px; border-radius: 20px; border: 1px solid var(--border); }
.burger { display: none; background: none; border: none; color: var(--text); font-size: 20px; cursor: pointer; padding: 4px 8px; }
.content { padding: 22px 24px; flex: 1; }
.sidebar-mask { display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.5); z-index: 35; }

/* ===== 卡片 / 统计 ===== */
.page { animation: rise 0.3s ease; }
.card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px 20px; }
.card + .card, .grid > * { margin-top: 0; }
.card-title { font-size: 15px; font-weight: 600; margin-bottom: 14px; display: flex; align-items: center; gap: 8px; }
.card-title .bar { width: 3px; height: 15px; border-radius: 2px; background: var(--grad); }
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 14px; margin-bottom: 20px; }
.stat-card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px 18px; position: relative; overflow: hidden; }
.stat-card::after { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px; background: var(--grad); opacity: 0.7; }
.stat-card .k { font-size: 12px; color: var(--text-2); margin-bottom: 6px; }
.stat-card .v { font-size: 26px; font-weight: 700; letter-spacing: 0.5px; }
.stat-card .v small { font-size: 13px; color: var(--text-3); font-weight: 400; margin-left: 4px; }
.stat-card .d { font-size: 12px; color: var(--text-3); margin-top: 4px; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.chart { width: 100%; height: 340px; }
.chart-sm { height: 260px; }
.mt-16 { margin-top: 16px; }
.mb-16 { margin-bottom: 16px; }
.row { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.row-right { margin-left: auto; }
.text-2 { color: var(--text-2); }
.text-3 { color: var(--text-3); }
.text-danger { color: var(--danger); }
.text-success { color: var(--success); }
.text-warn { color: var(--warn); }
.small { font-size: 12px; }

/* ===== 表格 ===== */
.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: 10px; background: var(--card); }
table.tbl { width: 100%; border-collapse: collapse; font-size: 13px; }
.tbl th {
  background: var(--bg-2); color: var(--text-2); font-weight: 600; text-align: left;
  padding: 10px 12px; border-bottom: 1px solid var(--border); white-space: nowrap; position: sticky; top: 0;
}
.tbl td { padding: 9px 12px; border-bottom: 1px solid rgba(35, 51, 73, 0.55); color: var(--text); white-space: nowrap; }
.tbl tr:hover td { background: rgba(56, 189, 248, 0.05); }
.tbl tr:last-child td { border-bottom: none; }
.tbl .num { font-variant-numeric: tabular-nums; }
.badge { display: inline-block; padding: 2px 9px; border-radius: 12px; font-size: 11px; font-weight: 600; }
.badge-ok { background: rgba(52, 211, 153, 0.14); color: var(--success); }
.badge-warn { background: rgba(251, 191, 36, 0.14); color: var(--warn); }
.badge-danger { background: rgba(248, 113, 113, 0.14); color: var(--danger); }
.badge-info { background: rgba(56, 189, 248, 0.14); color: var(--accent); }
.badge-purple { background: rgba(167, 139, 250, 0.14); color: var(--purple); }
.link { color: var(--accent); cursor: pointer; }
.link:hover { text-decoration: underline; }
.pager { display: flex; align-items: center; gap: 8px; padding: 12px; justify-content: flex-end; }
.pager .info { color: var(--text-3); font-size: 12px; margin-right: auto; }

/* ===== 筛选面板 ===== */
.filter-bar { display: flex; align-items: flex-end; gap: 12px; flex-wrap: wrap; background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px 16px; margin-bottom: 16px; }
.filter-item { display: flex; flex-direction: column; gap: 5px; }
.filter-item label { font-size: 12px; color: var(--text-2); font-weight: 500; }
.filter-item .input { width: auto; min-width: 110px; }
.filter-item select.input { min-width: 120px; }

/* ===== 对比分析布局 ===== */
.compare-layout { display: grid; grid-template-columns: 300px 1fr; gap: 16px; align-items: start; }
.panel { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; }
.panel-title { font-size: 14px; font-weight: 600; margin-bottom: 12px; display: flex; align-items: center; gap: 8px; }
.panel-title .bar { width: 3px; height: 14px; border-radius: 2px; background: var(--grad); }
.chk-group { max-height: 320px; overflow-y: auto; border: 1px solid var(--border); border-radius: 8px; padding: 6px; background: var(--bg-2); }
.chk-item { display: flex; align-items: flex-start; gap: 8px; padding: 7px 8px; border-radius: 6px; cursor: pointer; }
.chk-item:hover { background: var(--card-2); }
.chk-item input { margin-top: 3px; accent-color: var(--accent); }
.chk-item .t { font-size: 13px; line-height: 1.4; }
.chk-item .s { font-size: 11px; color: var(--text-3); }
.chart-tabs { display: flex; gap: 6px; margin-bottom: 14px; }
.chart-tab { padding: 6px 14px; border-radius: 8px; border: 1px solid var(--border); background: var(--card); color: var(--text-2); font-size: 13px; cursor: pointer; transition: all 0.15s; }
.chart-tab.active { background: var(--grad); color: #fff; border-color: transparent; }

/* ===== 导入 ===== */
.dropzone {
  border: 2px dashed var(--border-2); border-radius: 12px; padding: 36px 20px; text-align: center;
  color: var(--text-2); cursor: pointer; transition: all 0.2s; background: var(--bg-2);
}
.dropzone:hover, .dropzone.over { border-color: var(--accent); color: var(--accent); background: rgba(56,189,248,0.05); }
.dropzone .dz-ic { font-size: 34px; margin-bottom: 8px; }
.file-chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.file-chip { display: flex; align-items: center; gap: 6px; background: var(--card-2); border: 1px solid var(--border); padding: 5px 10px; border-radius: 8px; font-size: 12px; }
.file-chip .x { cursor: pointer; color: var(--text-3); }
.file-chip .x:hover { color: var(--danger); }
.file-chip.ok { border-color: rgba(52,211,153,0.4); }
.file-chip.err { border-color: rgba(248,113,113,0.5); color: var(--danger); }

/* ===== 弹窗 ===== */
.modal-mask { position: fixed; inset: 0; background: rgba(4, 8, 16, 0.7); backdrop-filter: blur(3px); display: flex; align-items: center; justify-content: center; z-index: 100; animation: fade 0.2s ease; }
@keyframes fade { from { opacity: 0; } to { opacity: 1; } }
.modal { width: 92%; max-width: 460px; background: var(--card); border: 1px solid var(--border-2); border-radius: 14px; padding: 22px; box-shadow: var(--shadow); animation: rise 0.25s ease; max-height: 86vh; overflow-y: auto; }
.modal h3 { font-size: 16px; margin-bottom: 16px; }

/* ===== Toast ===== */
#toast-root { position: fixed; top: 18px; right: 18px; z-index: 200; display: flex; flex-direction: column; gap: 8px; }
.toast {
  padding: 11px 16px; border-radius: 10px; font-size: 13px; color: #fff; background: var(--card-2);
  border: 1px solid var(--border-2); box-shadow: var(--shadow); min-width: 200px; max-width: 360px;
  animation: slideIn 0.25s ease; display: flex; gap: 8px; align-items: center;
}
.toast.ok { border-color: rgba(52,211,153,0.5); }
.toast.err { border-color: rgba(248,113,113,0.5); }
.toast.info { border-color: rgba(56,189,248,0.5); }
@keyframes slideIn { from { opacity: 0; transform: translateX(20px); } to { opacity: 1; transform: none; } }

.empty { text-align: center; color: var(--text-3); padding: 40px 0; }
.loading { text-align: center; color: var(--text-3); padding: 40px 0; }
.loading::before { content: ''; display: inline-block; width: 18px; height: 18px; border: 2px solid var(--border); border-top-color: var(--accent); border-radius: 50%; margin-right: 8px; vertical-align: -3px; animation: spin 0.7s linear infinite; }

/* ===== 响应式 ===== */
@media (max-width: 1080px) {
  .compare-layout { grid-template-columns: 1fr; }
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
}
@media (max-width: 860px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: none; }
  .main { margin-left: 0; }
  .burger { display: block; }
  .sidebar-mask.show { display: block; }
  .content { padding: 14px 14px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
}